Merge "Rename IDhcpLeaseCallbacks to IDhcpEventCallbacks for more generic." am: a73e5c5c18

Change-Id: I735c1c19a6255bdfd0fa09050dbb403fd9e43c7a
tree: 96e0743f54c45403f108754f89e8f58311dab95e
  1. Tethering/